Tensioning The Saw Chain (Side Chain Tensioner); Tensioning The Saw Chain (Quick Chain Tensioner); Checking Chain Tension; Chain Lubricant - Stihl MSE 170 C Instruction Manual

9 Tensioning the Saw Chain (side chain tensioner)

9 Tensioning the Saw Chain
(side chain tensioner)
1
Retensioning during cutting work:
► Disconnect the plug from the wall outlet.
► Loosen the nut.
► Hold the bar nose up.
► Use a screwdriver to turn the tensioning
screw (1) clockwise until the chain fits snugly
against the underside of the bar.
► While still holding the bar nose up, tighten
down the nut firmly.
► Go to "Checking Chain Tension".
A new chain has to be retensioned more often
than one that has been in use for some time.
► Check chain tension frequently – see chapter
on "Operating Instructions".
10 Tensioning the Saw Chain
(quick chain tensioner)
1
Re-tensioning during cutting work:
► Disconnect the power plug
► Fold out the wings of the wing nut and loosen
the wing nut
► Turn the adjusting wheel (1) to the right as far
as possible
► Tighten the wing nut (2) by hand
► Fold in the wings of the wing nut
► Next step: Continue with "Checking Chain
Tension"
0458-756-0121-B
2
A new saw chain has to be re-tensioned more
often than one that has been in use for some
time.
► Check chain tension frequently – see chapter
on "Operating Instructions"

11 Checking Chain Tension

1
► Disconnect the plug from the wall outlet.
► Wear work gloves to protect your hands.
► Disengage the chain brake: Pull the hand
guard (1) against the front handle and hold it
there – the chain brake and coasting brake are
disengaged in this position.
► The chain must fit snugly against the under‐
side of the bar and it must still be possible to
pull the chain along the bar by hand.
► If necessary, retension the chain.
A new chain has to be retensioned more often
than one that has been in use for some time.
► Check chain tension frequently – see chapter
on "Operating Instructions".

12 Chain Lubricant

For automatic and reliable lubrication of the
chain and guide bar – use only an environmen‐
tally compatible quality chain and bar lubricant.
Rapidly biodegradable STIHL BioPlus is recom‐
mended.
NOTICE
Biological chain oil must be resistant to aging
(e.g. STIHL BioPlus), since it will otherwise
quickly turn to resin. This results in hard deposits
that are difficult to remove, especially in the area
of the chain drive and chain. It may even cause
the oil pump to seize.
The service life of the chain and guide bar
depends on the quality of the lubricant. It is
therefore essential to use only a specially formu‐
lated chain lubricant.
English
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